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EP1366712A1 - Detecteur applicable au mouvement d'un corps - Google Patents

Detecteur applicable au mouvement d'un corps Download PDF

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Publication number
EP1366712A1
EP1366712A1 EP02703913A EP02703913A EP1366712A1 EP 1366712 A1 EP1366712 A1 EP 1366712A1 EP 02703913 A EP02703913 A EP 02703913A EP 02703913 A EP02703913 A EP 02703913A EP 1366712 A1 EP1366712 A1 EP 1366712A1
Authority
EP
European Patent Office
Prior art keywords
movement
detecting device
acceleration
movement detecting
angular velocity
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02703913A
Other languages
German (de)
English (en)
Other versions
EP1366712A4 (fr
Inventor
Norihiko c/o MicroStone Co. Ltd SHIRATORI
Kazutoyo c/o MicroStone Co. Ltd ICHIKAWA
Hideki c/o MicroStone Co. Ltd TAMURA
Yuji Izawa
Masaki c/o MicroStone Co. Ltd TERASHIMA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MicroStone Co Ltd
Original Assignee
MicroStone Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2001110616A external-priority patent/JP2002263086A/ja
Priority claimed from JP2001232847A external-priority patent/JP2003010265A/ja
Priority claimed from JP2001333496A external-priority patent/JP2003093566A/ja
Priority claimed from JP2001402169A external-priority patent/JP2003159359A/ja
Application filed by MicroStone Co Ltd filed Critical MicroStone Co Ltd
Publication of EP1366712A1 publication Critical patent/EP1366712A1/fr
Publication of EP1366712A4 publication Critical patent/EP1366712A4/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/18—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration in two or more dimensions
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
    • A61B5/1118—Determining activity level
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Measuring devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor or mobility of a limb
    • A61B5/1123—Discriminating type of movement, e.g. walking or running
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/22—Ergometry; Measuring muscular strength or the force of a muscular blow
    • A61B5/221—Ergometry, e.g. by using bicycle type apparatus
    • A61B5/222—Ergometry, e.g. by using bicycle type apparatus combined with detection or measurement of physiological parameters, e.g. heart rate
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/48—Other medical applications
    • A61B5/4866—Evaluating metabolism
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/68—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801—Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6802—Sensor mounted on worn items
    • A61B5/681—Wristwatch-type devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P15/00—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
    • G01P15/02—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses
    • G01P15/08—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values
    • G01P15/097—Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration by making use of inertia forces using solid seismic masses with conversion into electric or magnetic values by vibratory elements
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B2562/00—Details of sensors; Constructional details of sensor housings or probes; Accessories for sensors
    • A61B2562/02—Details of sensors specially adapted for in-vivo measurements
    • A61B2562/0219—Inertial sensors, e.g. accelerometers, gyroscopes, tilt switches

Definitions

  • the device is worn on a body of a user to detect physical movements of the body by a sensor and the movement condition is determined based on the detected data so as to be used for health control and other objectives. For example:
  • the container is housed in a case and the case is adapted to be worn on a wrist.
  • the tuning fork comprises a pair of outer prongs and a middle prong between the outer prongs.
  • the two forces constitute a couple of forces, so that the fork base 21 sways, thereby generating very small rotational vibrations about the fulcrum 22.
  • a vibration voltage extracted from the detecting electrode provided on the middle prong 20 is a detected signal representing the angular velocity ⁇ z which is then converted into a display signal and shown on the display 5.
  • One of the features of the present invention lies in the algorism for obtaining required information from the acceleration Gx and the angular velocity ⁇ z.
  • An outline of the algorism is described and the operation thereof is explained in detail with reference to a flowchart hereinafter.
  • the measured values of acceleration Gx and angular velocity ⁇ z are data sampled at 10 to 100 Hz, for example at 20 and 50 Hz. Moreover, as the amount representing the levels of the acceleration Gx and angular velocity ⁇ z, a sum of the absolute values or a sum of the power of the absolute values of predetermined numbers of the sampled data are used.
  • Fig. 4a is a flowchart describing the operation of the first embodiment of the movement measuring device of the present invention and Figs. 4b and 4c are flowcharts describing the operations where energy is calculated in the flowchart of Fig. 4a.
  • the consumed energy is shown and stored, and in addition, the data are transferred through a wireless or a cable to the external computer as required. It is appropriate to display the consumed energy every 15 minutes, or a daily value, for example.
  • the program returns from an end C to the step 44 of Fig. 4a for the next movement analysis.
  • the program goes from the step 49 to a step 55 in Fig. 4c where the movement is further classified to determine the movement coefficient thereof. Namely, using each of powers of the acceleration Gx and angular velocity ⁇ z, or a sum of the absolute value thereof, when Gx ⁇ 8 and at the same time, ⁇ z ⁇ 2.8, the movement is determined as Walking 1, when 2.8 ⁇ ⁇ z ⁇ 5, as Walking 2, 5 ⁇ ⁇ z ⁇ 7.2, as Walking 3, 7.2 ⁇ z, as Walking 4, 8 ⁇ Gx ⁇ 16, as Running 1, and 16 ⁇ Gx, as Running 2.
  • the consumed energy is calculated using the movement coefficient in accordance with the aforementioned equation.
  • the program goes to the step 54 of Fig. 4b through the junction D so as to display and store the data.
  • Fig. 5 is a graph showing a relationship between sum of absolute values of acceleration Gx and that of angular velocity ⁇ z in the movement by a subject P determined as having a periodicity
  • Fig. 6 is a graph showing a relationship between sum of absolute values of acceleration Gx and that of angular velocity ⁇ z in the movement by the same subject P determined as having no periodicity. From these graphs, the intensities of the running and heavy exercise can be classified using the acceleration Gx, and the intensities of walking and other movements can be classified using the angular velocity ⁇ z.
  • the embodiment of the present invention is not confined to the one described above.
  • the detecting directions of the acceleration and the angular velocity are both in single direction in the above described embodiment, a biaxial or triaxial acceleration and angular velocity sensors may be provided, in which case there is an advantage of increasing the information for analyzing the movements.
  • a speaker provided in the device For emitting a sound, a speaker provided in the device is used, and when using a wireless, a radio wave is transmitted to an external equipment, or a rescue signal is transmitted by way of a radio transmitting device such as a mobile phone which the user has.
  • a radio transmitting device such as a mobile phone which the user has.
  • the rescue signal producing function is carried out with priority in the regular processing routine shown in Figs. 4a to 4c, for example.
  • Fig. 14 is a plan view showing the movement measuring device of a second embodiment of the present invention
  • Fig. 15 is a sectional view taken along a center line thereof.
  • the present embodiment is adapted mainly to a device for transmitting an intension of a user to a third party.
  • Fig. 14 the X, Y and Z coordinate systems are set as shown.
  • References G and ⁇ represent the magnitudes of the acceleration and angular velocity, respectively, and Gy and ⁇ z show the directional components thereof, respectively.
  • Fig. 20 is a plan view of another example of the movement sensor of the present invention.
  • two sensor vibrators that is a lower sensor vibrator 116L and an upper sensor vibrator 116U, each having different detecting direction, are provided in a common container 115 formed in a shape of a box.
  • the sensor vibrators are so disposed at the right angle of each other but in different vertical planes in order that the vibrators are not in contact with each other. Accordingly, angular velocities and accelerations in more than one directions can be simultaneously detected.
  • FIG. 21 is a schematic illustration of a third embodiment of the present invention.
  • a case 125 has a band 126 and a display 127. Axes of a coordinate system of the case 125 showing the directions are also shown in the figure.
  • the swing of the arm is increased as the walking speed increases, and the average angle ⁇ is also increased, thereby increasing the Y-direction components.
  • the arms are bent compared to walking, so that the X-direction components are increased.
  • the magnitude is greater in the exercise walking since the arms are consciously swayed.
  • a large impulsive higher harmonic component is included in the acceleration information, so that in a common conventional method where movement pattern was directly extracted, the results are scattered thereby decreasing the determining accuracy. This is also true in the case of a method where the correlation between acceleration waveforms is applied. It has been found that a superior determining accuracy is achieved in the present invention.

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Medical Informatics (AREA)
  • Surgery (AREA)
  • Veterinary Medicine (AREA)
  • Public Health (AREA)
  • Biophysics (AREA)
  • Pathology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Physics & Mathematics (AREA)
  • Physiology (AREA)
  • Dentistry (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Cardiology (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Obesity (AREA)
  • Measurement Of The Respiration, Hearing Ability, Form, And Blood Characteristics Of Living Organisms (AREA)
  • Measurement Of Distances Traversed On The Ground (AREA)
  • Gyroscopes (AREA)
EP02703913A 2001-03-06 2002-03-05 Detecteur applicable au mouvement d'un corps Withdrawn EP1366712A4 (fr)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
JP2001110616 2001-03-06
JP2001110616A JP2002263086A (ja) 2001-03-06 2001-03-06 運動測定装置
JP2001232847 2001-06-27
JP2001232847A JP2003010265A (ja) 2001-06-27 2001-06-27 コミュニケーション端末装置およびシステム
JP2001333496A JP2003093566A (ja) 2001-09-26 2001-09-26 運動識別方法および運動センシングモジュール
JP2001333496 2001-09-26
JP2001402169A JP2003159359A (ja) 2001-11-28 2001-11-28 健康管理用装置
JP2001402169 2001-11-28
PCT/JP2002/001998 WO2002069803A1 (fr) 2001-03-06 2002-03-05 Detecteur applicable au mouvement d'un corps

Publications (2)

Publication Number Publication Date
EP1366712A1 true EP1366712A1 (fr) 2003-12-03
EP1366712A4 EP1366712A4 (fr) 2006-05-31

Family

ID=27482192

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02703913A Withdrawn EP1366712A4 (fr) 2001-03-06 2002-03-05 Detecteur applicable au mouvement d'un corps

Country Status (6)

Country Link
US (1) US7028547B2 (fr)
EP (1) EP1366712A4 (fr)
KR (1) KR20030004387A (fr)
CN (1) CN1287733C (fr)
TW (1) TW516949B (fr)
WO (1) WO2002069803A1 (fr)

Cited By (22)

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EP1618844A1 (fr) * 2004-07-21 2006-01-25 Matsushita Electric Works, Ltd. Système pour déterminer l'activité physique
FR2874727A1 (fr) * 2004-09-02 2006-03-03 Thierry Burbaud Dispositif portable de detection, d'alerte et de transmission d'informations relatives a une personne physique
WO2006052765A3 (fr) * 2004-11-04 2006-08-10 Smith & Nephew Inc Dispositif de mesure de cycles et de charge
WO2007057692A3 (fr) * 2005-11-18 2007-07-12 Lusora Ltd Detection de la chute d'une personne
EP1803397A3 (fr) * 2005-09-13 2007-08-08 Actimon GmbH & Co. KG Installation de contrôle
EP1821071A1 (fr) * 2006-02-16 2007-08-22 Seiko Instruments Inc. Podomètre
EP1862765A1 (fr) * 2006-05-29 2007-12-05 Polar Electro Oy Procédé et dispositif de poignée
EP1903312A1 (fr) * 2006-09-21 2008-03-26 Seiko Instruments Inc. Pédomètre
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US7028547B2 (en) 2006-04-18
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CN1287733C (zh) 2006-12-06
CN1457246A (zh) 2003-11-19

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